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290079Re: Directive "mynetwork" and "mynetwork_style"

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  • Muhammad Yousuf Khan
    Dec 14, 2012
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      Thanks :)


      On Fri, Dec 14, 2012 at 1:35 PM, Will <will@...> wrote:
      >
      > On 12/14/12 01:43, Muhammad Yousuf Khan wrote:
      >
      > i am confuse about the utilization of directives: "mynetwork" and
      > "mynetwork_style"
      >
      > is "mynetwork" directive completely dependent on "mynetwork_style".
      > can i use only "mynetwork" for relaying messages or i always have to
      > use "mynetwork_style" along with "mynetwork" to allow relaying to
      > particular host or subnet.
      >
      > thanks in advance.
      >
      > mynetworks and mynetworks_style are essentially mutually exclusive; you use
      > either one or the other. If you specify mynetworks, mynetworks_style is
      > ignored. Each is used to specify SMTP clients that are "trusted" by the
      > server based on their IP address. mynetworks_style is used to specify
      > trusted clients based on their relationship to the server's IP address,
      > while mynetworks is specifies trusted clients by explicitly giving their IP
      > addresses or an IP address range. For example, specifying "mynetworks_style
      > = subnet" indicates that all clients in that subnet are trusted, while
      > mynetworks = 50.116.33.0/24 might be used instead to say the same thing (if
      > 50.116.33.0/24 describes your subnet).
      >
      > These clients are "trusted" because the mynetworks (or mynetworks_style)
      > parameter is used by smtpd to determine who is allowed to relay mail when
      > the smtpd_relay_restrictions parameter contains "permit_mynetworks." If you
      > haven't changed smtpd_relay_restrictions in your config, it defaults to
      > "permit_mynetworks, reject_unauth_destination," which will allow those
      > clients listed in mynetworks (or mynetworks_style) to relay mail. You only
      > need to use mynetworks OR mynetworks_style (but not both) to enable relaying
      > from certain clients.
      >
      > Read the documentation when you get confused. It is explained quite clearly
      > here:
      > http://www.postfix.org/postconf.5.html#mynetworks
      > http://www.postfix.org/postconf.5.html#mynetworks_style
      > http://www.postfix.org/postconf.5.html#smtpd_relay_restrictions
      >
      > -Will
      >
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